# Grok 3 vs Muse Spark 1.3

> Muse Spark 1.3 is the stronger model overall, scoring 54.8 to 39.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-3-vs-muse-spark-1-3
- Last updated: 2026-10-10
- Shared benchmarks: 20

## Summary

- They share 20 benchmarks with published results for both. Grok 3 scores higher in 1 category and Muse Spark 1.3 in 8 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark 1.3 leads 54.0 to 13.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 55.6% for Grok 3 and 99.2% for Muse Spark 1.3.

## Snapshot

| | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| Provider | xAI | Meta |
| Noometry Index | 39.9 | 54.8 |
| Rank | 157 | 27 |
| Context | — | 1.05M |
| Input $/M | — | $1.25 |
| Output $/M | — | $4.25 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok 3: 41.9 (#115)
- Muse Spark 1.3: 56.6 (#21)

| Benchmark | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| LMArena Coding | 1432 | 1514 |
| Aider Polyglot | 53.3% | — |
| CursorBench | — | 41.6% |
| LMArena WebDev | — | 1657 |
| SciCode | — | 59.7% |
| WeirdML | 37.2% | — |

## Agentic & Tool Use

- Grok 3: 30.5 (#76)
- Muse Spark 1.3: 38.6 (#30)

| Benchmark | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| APEX-Agents | — | 57.8% |
| BALROG | 29.5% | — |
| GDP.pdf | — | 27.6% |

## Reasoning

- Grok 3: 13.7 (#333)
- Muse Spark 1.3: 54.0 (#27)

| Benchmark | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| LMArena Hard Prompts | 1434 | 1503 |
| Epoch Capabilities Index | 138.33 | 156.75 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 36.1% | — |
| Kagi LLM Benchmark | 61.3% | — |
| NYT Connections (extended) | — | 85.1% |
| ARC-AGI-1 | 5.5% | — |
| CritPt | — | 26% |
| Chess Puzzles | — | 38% |
| Mystery Game Puzzles | — | 25% |
| DTBench | — | 96.5% |
| LMCA | — | 53.9% |
| Bench to the Future 3 | — | 0.14 |

## Math

- Grok 3: 38.0 (#145)
- Muse Spark 1.3: 73.1 (#21)

| Benchmark | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 55.6% | 99.2% |
| LMArena Math | 1391 | 1494 |
| FrontierMath (Tiers 1-3) | — | 74.4% |
| FrontierMath Tier 4 | — | 46.3% |
| ProofBench | — | 58% |
| Omni-MATH | 46.4% | — |
| MATH Level 5 | 88.7% | — |
| FrontierMath (Feb 2025 set) | 3.8% | — |
| FrontierMath Tier 4 (v1) | 0% | — |

## Knowledge

- Grok 3: 46.2 (#82)
- Muse Spark 1.3: 42.6 (#95)

| Benchmark | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| LMArena Expert | 1421 | 1516 |
| GPQA Diamond | 75.8% | — |
| MMLU-Pro | 78.8% | — |
| Confabulations | 14.2% | — |
| Vectara Hallucination Rate | 5.8% | — |
| GPQA (HELM) | 65% | — |

## Multimodal

- Grok 3: —
- Muse Spark 1.3: 43.7 (#22)

| Benchmark | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| LMArena Vision | — | 1309 |
| LMArena Document | — | 1471 |

## Multilingual

- Grok 3: 52.3 (#87)
- Muse Spark 1.3: 57.4 (#8)

| Benchmark | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| LMArena Non-English | 1410 | 1481 |
| LMArena Chinese | 1448 | 1529 |
| LMArena French | 1460 | 1524 |
| LMArena German | 1431 | 1515 |
| LMArena Japanese | 1387 | 1474 |
| LMArena Korean | 1373 | 1501 |
| LMArena Russian | 1416 | 1490 |
| LMArena Spanish | 1417 | 1490 |

## Instruction Following

- Grok 3: 75.0 (#73)
- Muse Spark 1.3: 77.5 (#22)

| Benchmark | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| LMArena Instruction Following | 1409 | 1477 |
| IFEval | 88.4% | — |

## Long Context

- Grok 3: 38.7 (#192)
- Muse Spark 1.3: 45.6 (#32)

| Benchmark | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| LMArena Longer Query | 1439 | 1488 |
| Fiction.LiveBench | 58.3% | — |

## Writing & Preference

- Grok 3: 55.8 (#141)
- Muse Spark 1.3: 73.6 (#9)

| Benchmark | Grok 3 | Muse Spark 1.3 |
|---|---|---|
| LMArena Text | 1426 | 1490 |
| LMArena Creative Writing | 1414 | 1455 |
| EQ-Bench Creative Writing | 1186 | 1906 |
| LMArena Multi-Turn | 1425 | 1482 |
| Short-Story Creative Writing | 76.4% | — |
| WildBench | 84.9% | — |

## FAQ

### Is Grok 3 better than Muse Spark 1.3?

Muse Spark 1.3 is the stronger model overall, scoring 54.8 to 39.9 on the Noometry Index.

### Is Grok 3 or Muse Spark 1.3 better for coding?

Muse Spark 1.3 scores higher on coding benchmarks: 56.6 versus 41.9 in the Noometry coding category.

### How many benchmarks do Grok 3 and Muse Spark 1.3 share?

20 benchmarks have published results for both models. Grok 3 has 40 scored results on Noometry and Muse Spark 1.3 has 37.